Animal Phyla/Echiura
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![](//upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Un_ver_de_la_famille_des_Bonelliidae.jpg/300px-Un_ver_de_la_famille_des_Bonelliidae.jpg)
A spoon worm of the family Bonelliidae.
![](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f4/Un_ver_de_la_famille_des_Bonelliidae.jpg/300px-Un_ver_de_la_famille_des_Bonelliidae.jpg)
- Echiura
- Name Meaning: Spine tail
- English Common Name: Spoon worms
- Major distinguishing characteristics: Set of hooks at posterior end
- Approximate number of species described: about 140